Overflow drain and water seal for gas washers



Aug. 2s, 1923.

K. WEINEL OVERFLOW DRAIN AND WATER SAL FOR GAS WASHERS Filed Sept. s, 1919 h3 l TEE 'rats KARL IVEINEL, OF CHICAGO, ILLINOIS, ASSIGNOR TO FREYN, BRSSERTiKc COMPANY,

OF CHICAGO, ILLINOIS, A CORPORATION 0F MAINE.

OVERFLOIT :DRAINl AND WATER SEAL IEORVGAS WASHERS.

Application ined septembers, 1919."y serial No. 322,586. i

To allie/10m t may concern.' Y

Be it known that I, KARL VVErNnL, formerly a citizen of the German Empire, butV to the lower end or" a vertical gas washer.

tower of the type shown in Brassert Patent No. 1,169,766v at two places in said tower one drain above' andthe other below the gas entrance pipe, the lower -drain being capable of being closed when desired.

My invention Vhas particular reference to means for carrying` away the water used in washing the gas should the `main drain from the washer tower become stopped or clogged, or if it should be desired to make repairs on the main drain it can be closed and the water will pass out through the overflow drain.

A further object of my invention in addition to the provision of' an overflow drain is the provision of'a water seal for gas washerswherein the main drain can be closed by means of valves and the valve in the lower or overflow drain pipe closed, thus causing' the water which drains down in the bottom' of the washer tower to rise to a point above the gas entrance pipe. This effectively closes the passageof the gas through the` gas washer tower.

Another object of. myinvention is the provision ot an overflow drain and water seal which is simpleV and' eiiicient in operation and which can beeasily attached to gasv washer towers of the kind now generally in use for cleanmg'blast Vfurnace gas.

These and other objects of my invention will be more fully vand better understood by reference to the accompanying sheet of drawings, and in which The figure is a view in elevation of the lower end of the gas washer tower showing my improved invention secured thereto.

Referring novT specicallv to the draw-V ings, and. in which like reference characters refer to like parts throughout, a gas washer tower 10 is shown having the usual cone-v shaped bottom 11 secured thereto, a trap 12 Y isfsecuredto the lower end of the member` 11 from which a main drain pipe 13 leads in 1 the usual manner. A gas supply pipe 14 is shown for" supplying gas to the` washer tower 10. A drain pipe 15 is provided' which is connected to the gas washer tower at two points, one above and the other'be?.

low the gas entrance pipe 14, as hereinafter described. A T 16 isinterposed in said pipe 15 and hasan ordinary gate valve 17 secured thereto, ai nipple 18 .being providedy Vwhich is secured to the wall of the gas washer tower. 10 belo-w the pipe 14. short through" an L 20 a spool 21 and a nipple 22 forming a continuation of the pipe. line to the gas washertower, thus providing'an exit above the pipe 14.'y Secured to the??A 5,

lower end of the pipe 1 15 is a T 23 witha vblind flange on one end and to which an "L"' 24: is secured. A section of-pipe 25 is .se-

cured to the L 24 and vextends upwardly therefrom to which in any manner may beA secured another section of pipe to direct the flow of water in any direction desired,` as by a T 26 and an L 27 thus providing a s v hon arranofementso that a column .ot

water will closethe pipe 15 at all times and prevent the gas from the gas washer passalsV` ing therethrough.k A flush pipe 2.8 is pro'- vided which is secured to the pipe 15'and the main drainy pipe 13, an ordinary secured. -to 'the Y gate valvey 29 being pipe 28 soV that itl'may be closed if' desired. The purposeof this.A pipe 28 is to flush out the lower end of the drain 15 if necessary, or to supply it with a sufficient amount of water so that the V'pipe .will be closed up and prevent the gas flowing therethrough ,andv out of the gas wa sher tower 10.

The device is exceedingly simple in oper-'- ation and it will be understood thatthe valve 17 is open during the normal operation of the gas tower. If, for any reason, lthema'i'n drain pipe 13 should become stopped up, or

vsection of pipe 19 is secured to. thefT 16 and 7 0 v1"? is also closed and thus the water which- 1 10 i is being supplied in the upper part of the gas tower passes down and collects in the bottom othe tower, continues to rise above the pipe 14 through which the gas is being supplied to the tower until it reaches the pipe 22, whereupon the water will pass upward through the pipe 22 and into the drain pipe 15. In the meantime, of course, the water having risen to a point above the gas supply pipe 14 has effectively closed this pipe Vand prevents the passage of gas through the gas washer tower, lt will also be understood that without vthe provision ofthis..

overflow drain 18 should the main drain pipe 13 rbeoome stopped up the water would continue to rise in the gas tower and oompletely shut oi the 'flow of gas therethrough,

thus necessitating the .shutting down of the blast furnace and the stopping ot all operations until the drain pipe 1;?) could be cleaned out and the water drained out otthe gas washer tower, ltis necessary to. provide water licorthe washing ot the gas as it passes through the tower and it the drain pipe 13 should becomestopped up vit will cause the water `to rise in the tower and ellectively` "closethe towerragainst the passage of gas therethrough.

While I have described more or less precisely the details Vof'eonstruetion, l do not wish to be understood as limiting myself thereto, as I contemplate changes in form and the proportion of parts and the substi-r tution of equivalents as circumstances'may suggest or render expedient without departing from the spirit or scope of my invention.

l claim:

l. ln combination, a gas washer tower,

.gas inlet and above the line of the Ywater supply maintainedin said tower, and having a siphon at thelowe'r end of said drain pipe 'for maintaining a water seal. Y

2. ln combination, aV was Vwasher tower, an i'ipwardly extending drain pipevconneoted to the bottom of said tower whereby a,

water seal is maintained at a predetermined height, a pipe. connected to said tower and forming a gas inlet, a drain pipe connected to saidgas washer tower below the gas inlet and above the line of the water supply maia tained in said tower, and having a siphon at the lower end of said drain pipe Yfor main! taining a water seal, and a second pipe connected tol said siphon whereby a supply of4 water is maintained in said'drain pipe at all Y times whereby the said pipe is closed against the passage of gas therethrough.

Signed at Chicago, lllinois, this 29th day of August, 1919. 

